Reaming type directional drill rod for horizontal drilling of coal mine

Abstract

The utility model relates to the technical field of directional drill rods, and provides a reaming directional drill rod for horizontal drilling of a coal mine, which comprises a first drill rod body and a fixing structure. Through the arrangement of the fixing structure, the second drill rod body is moved to one side of the first drill rod body, meanwhile, the second drill rod body can drive the positioning block to move into the positioning groove, at the moment, the first flange plate is placed at one end of the first drill rod body, the first flange plate is moved, and the groove in the first flange plate is aligned with the teeth; then the second flange plate is placed at one end of the second drill rod body, the second flange plate is moved, a groove in the second flange plate is aligned with the teeth, at the moment, the fixing bolt is rotated, the first drill rod body and the second drill rod body are fixed to each other, and torque between the first drill rod body and the second drill rod body is increased through the teeth and the positioning block; and the function that the device is convenient to fix is achieved, and therefore the applicability of the reaming type directional drill rod for horizontal drilling of the coal mine in the using process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of directional drill rods, in particular to a hole-expanding directional drill rod for horizontal drilling in coal mines. Background Art

[0002] Directional drill pipe plays the role of directional signal transmission, hydraulic power transmission required by the bottom hole motor and drilling rig power transmission in directional drilling. It is a dual-channel structure for drilling fluid and electrical signal transmission. In the process of coal mining, a directional drill pipe for expanding the hole for horizontal drilling in coal mines is needed;

[0003] To this end, the patent with publication number CN207194836U discloses a horizontal directional drill rod, including a drill rod body, one end of the drill rod body is provided with a male connector, the other end of the drill rod body is provided with a female connector matching the male connector, the drill rod body is provided with a through hole along its axial direction, a female cable plug is installed in the male connector, a male cable plug matching the female cable plug is installed in the female connector, a cable line is connected between the male cable plug and the female cable plug, and the cable line is passed through the through hole of the drill rod body. The drill rod uses the drill rod body with a hole to protect the cable line, avoiding damage to the cable line during the drilling process; at the same time, when multiple drill rod bodies are spliced, multiple cables are also connected, avoiding construction personnel from connecting cables individually, saving time and improving construction efficiency;

[0004] Although the horizontal directional drill rod described above can realize the splicing of multiple drill rod bodies, the device is not stable enough during splicing, which makes it less applicable during use. Utility Model Content

[0005] The utility model aims to provide a hole-expanding directional drill rod for horizontal drilling in coal mines, so as to solve the defect that the existing hole-expanding directional drill rod for horizontal drilling in coal mines is inconvenient to fix.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a hole-expanding directional drill rod for horizontal drilling in coal mines, comprising a first drill rod body and a fixing structure;

[0007] A second drill rod body is disposed on one side of the first drill rod body, and a fixing structure is disposed between the first drill rod body and the second drill rod body;

[0008] The fixing structure comprises a first flange, a second flange, fixing bolts, teeth, a positioning block, a positioning groove and a groove, wherein the first flange is arranged on the outer wall of one end of the first drill rod body, a second flange is arranged on one side of the first flange, grooves are provided inside the first flange and the second flange, teeth are evenly fixed on the outer walls at both ends of the first drill rod body and the second drill rod body, a positioning groove is provided on one side of the first drill rod body, a positioning block is provided inside the positioning groove, and fixing bolts are evenly penetrated inside the first flange close to the second flange;

[0009] An adjustment structure is provided at one end of the second drill rod body away from the first drill rod body.

[0010] When using the device, by providing a fixed structure, the device can be easily fixed, thereby improving the applicability of the hole-expanding directional drill rod for horizontal drilling in coal mines when in use; by providing an adjustment structure, the device can be easily adjusted, thereby improving the convenience of the hole-expanding directional drill rod for horizontal drilling in coal mines when in use.

[0011] Preferably, the positioning block and the first drill rod body form a locking structure through the positioning groove, and the teeth and the grooves mesh with each other. The second drill rod body is moved to one side of the first drill rod body, and the second drill rod body drives the positioning block to move to the inside of the positioning groove. At this time, the first flange is placed on one end of the first drill rod body, and the first flange is moved so that the groove inside the first flange is aligned with the teeth. Then the second flange is placed on one end of the second drill rod body, and the second flange is moved so that the groove inside the second flange is aligned with the teeth. At this time, the fixing bolts are rotated to fix the first drill rod body and the second drill rod body to each other. The teeth and the positioning block increase the torque between the first drill rod body and the second drill rod body, so that the first drill rod body and the second drill rod body are not easy to break when rotating.

[0012] Preferably, the teeth are distributed at equal intervals on the outer side walls of the first drill pipe body and the fixed structure, and the first flange is fixedly connected to the second flange by fixing bolts.

[0013] Preferably, the fixing bolts are distributed at equal intervals inside the first flange and the second flange, and the side cross-section of the teeth is trapezoidal in design.

[0014] Preferably, the adjustment structure includes a connecting seat, an electric push rod, a drill tooth rod, a drill bit and a support rod, the connecting seat is fixed to one end of the second drill rod body, an electric push rod is fixed to one side of the connecting seat, a drill bit is fixed to one side of the electric push rod, both ends of one side of the connecting seat are hinged with support rods, and one end of the support rod is hinged with a drill tooth rod. When the electric push rod is started, the electric push rod drives the drill bit to move, the support rod and the drill tooth rod change their angles through the hinge seat, and then the diameter of the hole changes.

[0015] Preferably, one end of the drill tooth rod is hinged to the drill bit, and the support rods are symmetrically distributed on one side of the connecting seat.

[0016] Preferably, the drill tooth rods are symmetrically distributed on one side of the drill bit, and two groups of support rods are provided.

[0017] The utility model provides a hole-expanding directional drill rod for horizontal drilling in coal mines, which has the advantages of:

[0018] By providing a fixing structure, the second drill rod body is moved to one side of the first drill rod body, and at the same time, the second drill rod body drives the positioning block to move to the inside of the positioning groove. At this time, the first flange is placed on one end of the first drill rod body, and the first flange is moved so that the groove inside the first flange is aligned with the teeth. Then, the second flange is placed on one end of the second drill rod body, and the second flange is moved so that the groove inside the second flange is aligned with the teeth. At this time, the fixing bolt is rotated to fix the first drill rod body and the second drill rod body to each other. The torque between the first drill rod body and the second drill rod body is increased through the teeth and the positioning block, so that the first drill rod body and the second drill rod body are not easy to break when rotating, and the function of the device being easy to fix is ​​realized, thereby improving the applicability of the expansion type directional drill rod for horizontal drilling in coal mines when in use;

[0019] By providing an adjustment structure and starting the electric push rod, the electric push rod will drive the drill bit to move, and the angles of the support rod and the drill tooth rod will change through the hinge seat, thereby changing the diameter of the hole, thereby realizing the easy adjustment function of the device, thereby improving the convenience of using the hole-expanding directional drill rod for horizontal drilling in coal mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0022] Figure 3 It is a side cross-sectional structural schematic diagram of the utility model;

[0023] Figure 4 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 5 It is a schematic diagram of the main structure of the utility model.

[0025] Explanation of the reference numerals in the figure: 1. first drill rod body; 2. fixing structure; 201. first flange; 202. second flange; 203. fixing bolt; 204. teeth; 205. positioning block; 206. positioning groove; 207. groove; 3. second drill rod body; 4. adjustment structure; 401. connecting seat; 402. electric push rod; 403. drill tooth rod; 404. drill bit; 405. support rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 The utility model provides a directional drill rod for expanding holes for horizontal drilling in coal mines, comprising a first drill rod body 1 and a fixing structure 2. A second drill rod body 3 is arranged on one side of the first drill rod body 1. A fixing structure 2 is arranged between the first drill rod body 1 and the second drill rod body 3. The fixing structure 2 comprises a first flange 201, a second flange 202, a fixing bolt 203, teeth 204, a positioning block 205, a positioning groove 206 and a groove 207. The first flange 201 is arranged on the outer wall of one end of the first drill rod body 1. A second flange 202 is arranged on one side of the first flange 201. Grooves 207 are provided inside the first flange 201 and the second flange 202. The first drill rod body 1 and the second drill rod body 3 at both ends are provided with a fixing structure 203. Teeth 204 are evenly fixed on the outer wall, a positioning groove 206 is opened on one side of the interior of the first drill pipe body 1, a positioning block 205 is arranged inside the positioning groove 206, fixing bolts 203 are evenly penetrated inside the first flange 201 near the second flange 202, the positioning block 205 and the first drill pipe body 1 form a clamping structure through the positioning groove 206, the teeth 204 and the groove 207 are meshed with each other, the teeth 204 are evenly distributed on the outer wall of the first drill pipe body 1 and the fixed structure 2, the first flange 201 is fixedly connected to the second flange 202 by fixing bolts 203, the fixing bolts 203 are evenly distributed inside the first flange 201 and the second flange 202, and the side view cross-section of the teeth 204 is trapezoidal in design.

[0028] Reference Figure 1and Figure 4 As shown, the second drill rod body 3 is moved to one side of the first drill rod body 1, and the second drill rod body 3 will drive the positioning block 205 to move to the inside of the positioning groove 206. At this time, the first flange 201 is placed on one end of the first drill rod body 1, and the first flange 201 is moved so that the groove 207 inside the first flange 201 is aligned with the teeth 204. Then the second flange 202 is placed on one end of the second drill rod body 3, and the second flange 202 is moved so that the groove 207 inside the second flange 202 is aligned with the teeth 204. At this time, the fixing bolt 203 is rotated to fix the first drill rod body 1 and the second drill rod body 3 to each other. The torque between the first drill rod body 1 and the second drill rod body 3 is increased through the teeth 204 and the positioning block 205, so that the first drill rod body 1 and the second drill rod body 3 are not easy to break during rotation.

[0029] An adjustment structure 4 is provided at one end of the second drill rod body 3 away from the first drill rod body 1, and the adjustment structure 4 includes a connecting seat 401, an electric push rod 402, a drill tooth rod 403, a drill bit 404 and a support rod 405. The connecting seat 401 is fixed to one end of the second drill rod body 3, an electric push rod 402 is fixed to one side of the connecting seat 401, and a drill bit 404 is fixed to one side of the electric push rod 402. Support rods 405 are hinged at both ends of one side of the connecting seat 401, and drill tooth rods 403 are hinged at one end of the support rods 405. One end of the drill tooth rod 403 is hinged to the drill bit 404, and the support rods 405 are symmetrically distributed on one side of the connecting seat 401, and the drill tooth rods 403 are symmetrically distributed on one side of the drill bit 404. Two groups of support rods 405 are provided.

[0030] Reference Figure 1 and Figure 2 As shown, when the electric push rod 402 is started, the electric push rod 402 will drive the drill bit 404 to move, and the angles of the support rod 405 and the drill tooth rod 403 will change through the hinge seat, thereby changing the diameter of the opening.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A directional drill rod for expanding holes for horizontal drilling in coal mines, comprising a first drill rod body (1) and a fixing structure (2); Features: A second drill rod body (3) is arranged on one side of the first drill rod body (1), and a fixing structure (2) is arranged between the first drill rod body (1) and the second drill rod body (3); The fixing structure (2) comprises a first flange (201), a second flange (202), fixing bolts (203), teeth (204), a positioning block (205), a positioning groove (206) and a groove (207); the first flange (201) is arranged on the outer wall of one end of the first drill rod body (1); the second flange (202) is arranged on one side of the first flange (201); the first flange (201) and the second flange (202) are both provided with grooves (207); teeth (204) are evenly fixed on the outer walls of both ends of the first drill rod body (1) and the second drill rod body (3); a positioning groove (206) is arranged on one side of the first drill rod body (1); a positioning block (205) is arranged inside the positioning groove (206); fixing bolts (203) are evenly penetrated inside the first flange (201) close to the second flange (202); An adjustment structure (4) is provided at one end of the second drill rod body (3) away from the first drill rod body (1).

2. The hole-expanding directional drill rod for horizontal drilling in coal mines according to claim 1, characterized in that: The positioning block (205) and the first drill rod body (1) form a locking structure through the positioning groove (206), and the teeth (204) and the groove (207) are meshed with each other.

3. The hole-expanding directional drill rod for horizontal drilling in coal mines according to claim 1, characterized in that: The teeth (204) are distributed at equal intervals on the outer side walls of the first drill pipe body (1) and the fixed structure (2), and the first flange (201) is fixedly connected to the second flange (202) via fixing bolts (203).

4. The hole-expanding directional drill rod for horizontal drilling in coal mines according to claim 1, characterized in that: The fixing bolts (203) are distributed at equal intervals inside the first flange (201) and the second flange (202), and the side view cross section of the teeth (204) is designed to be trapezoidal.

5. The hole-expanding directional drill rod for horizontal drilling in coal mines according to claim 1, characterized in that: The adjustment structure (4) comprises a connecting seat (401), an electric push rod (402), a drill tooth rod (403), a drill bit (404) and a support rod (405); the connecting seat (401) is fixed to one end of the second drill rod body (3); the electric push rod (402) is fixed to one side of the connecting seat (401); the drill bit (404) is fixed to one side of the electric push rod (402); both ends of one side of the connecting seat (401) are hinged with support rods (405); and one end of the support rod (405) is hinged with the drill tooth rod (403).

6. The hole-expanding directional drill rod for horizontal drilling in coal mines according to claim 5, characterized in that: One end of the drill tooth rod (403) is hinged to the drill bit (404), and the support rods (405) are symmetrically distributed on one side of the connecting seat (401).

7. The hole-expanding directional drill rod for horizontal drilling in coal mines according to claim 5, characterized in that: The drill teeth (403) are symmetrically distributed on one side of the drill bit (404), and two groups of support rods (405) are provided.

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